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Finding the Fourth Proportional to 162,428.46, 243,479.06 and 67,711.04

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Solution

The fourth proportional to 162,428.46, 243,479.06 and 67,711.04 is: 101,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,428.46 : 243,479.06 = 67,711.04 : x
  2. Step 2: Convert to fraction form
    162,428.46/243,479.06 = 67,711.04/x
  3. Step 3: Cross multiply
    162,428.46x = 243,479.06 × 67,711.04
  4. Step 4: Simplify right side
    162,428.46x = 16,486,219,981.83
  5. Step 5: Solve for x
    x = 16,486,219,981.83/162,428.46
  6. Step 6: Final answer
    x = 101,498.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.